add more immich control options

README.md

@@ -136,6 +136,7 @@ Example:
     "host": "mqtt.local",
     "port": 1883,
     "topic": "slide/control",
+    "immichTopic": "slide/immich",
     "clientId": "slide-frame",
     "username": "slide",
     "password": "secret",
@@ -151,6 +152,16 @@ Commands:
 * `next` / `next-image` — advance to next image
 * `next-folder` — jump to next configured path (if multiple paths are configured)
 * `restart` / `reset` — recreate the selector and restart playback
+If `immichTopic` is not set, it defaults to `<topic>/immich`.
+
+Immich control topic (`immichTopic`):
+* `album:<id>` or `albumIds:id1,id2` — filter to one or more album IDs
+* `person:<id>` or `personIds:id1,id2` — filter to one or more person IDs
+* `reset` / `clear` — clear album/person filters
+* JSON payloads are also accepted, for example:
+```
+{"albumIds":["..."],"personIds":["..."],"order":"desc","size":"fullsize"}
+```
 
 ### Immich configuration (lightweight + low power)
 
@@ -195,6 +206,7 @@ Immich settings:
 * `url`: base Immich server URL (the integration appends `/api` automatically if missing).
 * `apiKey`: Immich API key (needs `asset.view`, and `asset.download` if `size` is `original`).
 * `albumId` or `albumIds`: optional album filters.
+* `personId` or `personIds`: optional person filters.
 * `size`: `"fullsize"`, `"preview"`, `"thumbnail"`, or `"original"` (original uses the download endpoint).
 * `order`: `"asc"` or `"desc"` ordering for asset search.
 * `pageSize`: assets fetched per page.